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BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:447 [inline]
BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x358/0x540 net/nfc/llcp_sock.c:519
Read of size 43 at addr 0000000000000000 by task syz-executor.5/17124

CPU: 0 PID: 17124 Comm: syz-executor.5 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 __kasan_report mm/kasan/report.c:400 [inline]
 kasan_report.cold+0x5f/0xd5 mm/kasan/report.c:413
 check_memory_region_inline mm/kasan/generic.c:179 [inline]
 check_memory_region+0x13d/0x180 mm/kasan/generic.c:185
 memcpy+0x20/0x60 mm/kasan/shadow.c:64
 memcpy include/linux/string.h:447 [inline]
 llcp_sock_getname+0x358/0x540 net/nfc/llcp_sock.c:519
 __sys_getsockname+0x108/0x1f0 net/socket.c:1885
 __do_sys_getsockname net/socket.c:1900 [inline]
 __se_sys_getsockname net/socket.c:1897 [inline]
 __x64_sys_getsockname+0x6f/0xb0 net/socket.c:1897
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466019
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb516cbf188 EFLAGS: 00000246 ORIG_RAX: 0000000000000033
RAX: ffffffffffffffda RBX: 000000000056c158 RCX: 0000000000466019
RDX: 0000000020000080 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00000000004bd067 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c158
R13: 00007ffee040df5f R14: 00007fb516cbf300 R15: 0000000000022000
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